Cancrinite Hassan I, Antao S M, Parise J B American Mineralogist 91 (2006) 1117-1124 Cancrinite: Crystal structure, phase transitions, and dehydration behaviour with temperature Locality: Dungannon Township, Bancroft, Ontario, Canada Sample: T = 952 C _database_code_amcsd 0004178 12.7187 12.7187 5.2150 90 90 120 P6_3 atom x y z occ Uiso Na1 2/3 1/3 .1170 .1080 Na2 .1301 .2545 .2855 .67 .1080 Ca2 .1301 .2545 .2855 .25 .1080 Al .0727 .4109 .752 .0222 Si .3313 .4121 .75 .0222 C1 0 0 .770 .366 .109 C2 0 0 .973 .366 .109 O1 .2087 .4109 .680 .0247 O2 .1020 .5603 .747 .0247 O3 -.0040 .3280 .003 .0247 O4 .3177 .3561 .051 .0247 OC1 .0441 .1245 .770 .366 .109 OC2 .039 .1219 .973 .366 .109